ES2328513T3 - ANTI-FUNDING SECURITY DEVICE FOR AN APPLIANCES. - Google Patents

Abstract

An anti-flooding safety device (1) for an electrical household appliance comprises a connector body (2,40), connected to which are the first ends of a first flexible pipe (20) and a second flexible pipe (30), at least one part of said first pipe (20) extending longitudinally inside said second pipe (30). The two pipes (20,30) are of a corrugated type, and the device (1) comprises at least one safety solenoid valve (4), mounted on the connector body (2). At least one end portion of said first pipe (20) is coupled to a first end portion (21a) of a tubular element (21,23), preferably made of elastic synthetic material. The tubular element (21,23) has at least one axial stretch of surface structured so as to engage with an axial stretch of surface of the first pipe (20). A second end portion (21b) of the tubular element (21) is engaged or fitted on a coupling part (2a) of the connector body (2,40).

Description

Flood safety device for an appliance

The present invention relates to a device flood safety device appliances, in particular washing machines. This invention has been developed with special reference to the devices of the type mentioned above designed for use between a source of supply of a liquid and an apparatus home appliance

The use of an appliance fed with a liquid, or through which a liquid circulates, In general, it involves the risk of flooding of the place where It is installed due to possible accidental leaks. Such leaks they may be due, for example, to improper operation of the internal appliances of the appliance or a failure of the pipes for feeding or discharging the liquid.

In the context of the previous objective, they are known anti-flood devices that can provide a Virtually continuous control of the presence of possible leaks. These devices are usually made up of at least one valve, operating upstream of a water intake pipe and by detecting means, arranged in a water collecting tray, arranged in the appliance itself. In the case of improper operation of the device's internal devices appliance, the leakage water reaches said collecting tray, with the consequent intervention of the detecting means, provided to control the closing of the valve mentioned above.

The valves used for this purpose they are usually operated in an electrical, mechanical or pneumatic way and the detecting means are usually of an electromechanical type (for example, based on the use of a float and a microswitch) or in any other way basically of a mechanical type (for example, based on the use of an anhydrous sponge, designed to expand when in contact with a liquid).

Some security devices are also provided with an outer tube, which surrounds the conduit of water admission. In the case of failure of the latter, the tube exterior allows confluence in the collection tray, mentioned above, the leakage fluid so that it causes the closure of the safety valve (see, for example, the document FR-A-2 742 514 or the German document equivalent, DE-A-196 50 861). In other solutions, the defined space between the two tubes is designed to retain leakage water directly, instead of transport it to a collecting tray. In a first type of these Two-tube devices, the presence of water, inside the space, produces an increase in the volume of an anhydrous sponge, which consequently controls the closing of the valve of the device (see, for example, document IT-B-I 207 365). Other devices two tubes are, instead, predisposed simply to retain water and visually signal its presence within the space to inform the user regarding the need for a technical assistance intervention (see, for example, document DE-A-10 12 6104).

In devices known in the art anterior, the water intake tube, that is, the inner tube, It is usually a tube with smooth surfaces, made of chloride polyvinyl (PVC), with other possible fiber materials of reinforcement. The outer tube is usually a wavy tube, which is usually be made of polypropylene (PP). One of the main problems found in safety devices, according to the technique  above, it is represented by poor tube flexibility internal, made of PVC, which, in the case of small radius of curvature of the outer tube, tends to form cocas or be compressed by itself, producing a sharp reduction in the passage section for the liquid A coca or local compression can determine excessive pressures in the water intake tube, which is not they can detect directly by the user and are potentially detrimental to the integrity of the device and to the proper operation of the appliance. The pipes Traditional, made of PVC, are also relatively expensive and heavy.

The main objective of the present invention It consists of overcoming the aforementioned inconveniences. This and other purposes are also achieved, according to the present invention, by means of a flood safety device and by a corresponding preferred manufacturing process which presents the characteristics of the appended claims, which constitute an integral part of the descriptive content of the present patent application.

Other objectives, characteristics and advantages of the present invention will be apparent from the following detailed description and of the attached drawings, which they provide for explanatory example only and not limiting and in which:

- Figure 1 is a schematic view, in partial cross section of a safety device anti-floods according to the present invention;

- Figure 2 is a schematic view, in partial cross section of a water intake tube that It is part of the device shown in Figure 1 and

- Figures 3 to 5 are schematic views, in cross section of molding apparatus that can be used for the purpose of manufacturing parts of the tube represented in Figure 2, in three different operating states.

With the numerical designation 1, as a set, a safety device is shown in Figure 1 anti-flooding for household appliances according to the invention. The device 1, which is, in particular, indicated for use in combination with household appliances such as washing dishwasher, comprises a connector body 2, a tube of water intake 20 or an inner tube and an outer tube 30.

The connector body, or valve body, It is preferably made of plastic or material thermoplastic and defines, inside, a conduit 3 for the passage of water. The body 2 is configured so that the conduit 3 have an input 3a and an output 3b, between which it extends a part of the conduit, where means are operative for the Water supply interruption. In the example shown, said means comprise a solenoid valve 4.

Solenoid valve 4 is of a type and it presents a way of functioning known in itself (see, for example, document FR-A-2 742 514). In this description it will suffice to point out that the valve solenoid 4 has an electromagnet 5 provided with terminals power, one of which is designed by reference 6. Solenoid valve 4 comprises an opening / closing element 7, actuated by means of a mobile armor or core 8, which is housed in a corresponding body 9. The latter presents a threaded part, in an open seat provided with a screw inside, which is provided in body 2 and opens in the duct 3. The electromagnet 5, which is, in an embodiment preferred, enclosed in a protective coating 10 obtained by Overmolding of thermoplastic material, is mounted on body 9. When the electromagnet 5 is not supplied, the element of opening / closing 7 - via the mobile core 8 - is maintained by the action of a spring in a rest position, which does not It allows the passage of water from inlet 3a to outlet 3b. At Power case of the electromagnet 5, instead, the core 8 is induced to move to overcome the antagonistic force of spring mentioned above; in this case, the element of opening / closing 7 is designed to assume a position of opening, which allows the flow of water through the duct 3.

In the upper area of the valve body 2, in which is defined inlet 3a, an outer ring nut 11 is mounted for coupling device 1 to a source of water supply, such as a tap (not shown). Mounted at the top of the duct 3, upstream of the valve of solenoid 4, there is a filter 12 and a flow regulator 13. The lower area of the valve body 2 has a part of substantially cylindrical coupling 2a, in which it is defined exit 3b. On the outer surface of said part 2a are defined teeth or annular retention reliefs 2b.

According to the main aspect of the invention, the inner tube 20 is a corrugated tube, that is, a tube with a wall wavy In practice, the outer surface of the tube 20 (but also the inner surface) is defined by a series of reliefs and recesses, preferably annular and parallel to each other and arranged according to a regular series. These reliefs and recesses they could, instead, present a spiral configuration at tube length 20.

In the embodiment represented in the Figures 1 and 2, the wall or cross section of the tube 20 presents a configuration with a square profile, that is, with reliefs and recesses that are defined by contiguous stretches of the wall, which are substantially orthogonal to each other (a kind of "square wave"). Alternatively, the reliefs and recesses mentioned above could have a profile substantially trapezoidal, that is, at least in part delimited by sections slightly inclined or divergent from the wall. Tube 20 could present, in addition, a configuration similar to the one represented for outer tube 30, with a substantially outer profile rounded, that is, with reliefs and recesses by sections wall radials, which are semicircular or similar to a circumference arc (a kind of "sine wave").

The inner corrugated tube 20 is made preferably in polypropylene. A tube of this class presents flexibility characteristics, understood as the ability to deformation without compressing or forming cocas or local curvatures, obviously better than water intake pipes Traditional made of PVC. Instead, a corrugated tube, from type mentioned above, presents characteristics of elasticity that are lower than those of the tubes made of PVC. For that reason, according to one characteristic preferred of the invention, at least one end part of the tube interior 20 is coupled to a first end portion 21a of a respective tubular connection element, jointly designated by reference 21. The tubular element 21 has, in its part 21a, an axial section of the structured inner surface for its coupling with an axial section of the outer surface of the tube 20. The tubular element 21 has a second end portion 21b designed to be coupled or adapted in the coupling part 2a of the body 2. As can also be seen in Figure 2, the inner surface of element 21 defines, in part 21a, a regular series of reliefs and recesses, where the reliefs surface elements of element 21 are inserted in the recesses of the outer surface of the tube 20 while the reliefs of the outer surface of the tube 20 are inserted in the recesses surface of the tubular element 21. Due to the characteristics mentioned above, mechanical coupling and closure hydraulic, between the tube 20 and the tubular element 21 are excellent.

In the preferred embodiment of the invention, the tubular element 21 is molded with, or overmoulded directly on the terminal section of tube 20 of so that part of the inner surface of the tubular element 21 and part of the outer surface of the tube 20 are practically complementary to each other. The tube 20 and the tubular element 21 can be linked together as a result of adhesion or union of respective constituent materials, which may be of types compatible for that purpose.

The second extreme part 21b of the element tubular 21 is, as mentioned above, installed on the part 2a of the valve body 2, where the 2b reliefs. On the outside of said zone 21b is preferably a mechanical fixing component 22 is installed, consisting, for example, of a metal bushing, which can be deform locally by squeezing the tubular element 21 over the part 2nd of body 2.

It should be appreciated that the presence of reliefs and recesses of the tubular element 21, although it turns out preferred, it is not strictly necessary for the purposes of the embodiment of the invention. In other words, also the inner surface of part 21a of element 21 may be substantially smooth, in which case at least one mechanical element, designed to fix or grip said exterior part 21a in the tube 20. Said gripping element, preferably in an annular way, it can be conceptually constructive similar to component 22 or in any way constituted by a adequate section or extension of said component 22.

The material that constitutes the tubular element 21 is, in a preferred embodiment, a synthetic material elastic, such as an elastomer (for example, Santoprene®) for allow easy installation of the element itself in part 2a of the body 2.

In the non-limiting example represented, the upper end of tube 20 is not directly in contact or installed in part 2a of body 2. For this purpose, the tubular element 21 may have an intermediate part between the extreme parts 21a, 21b, which defines the output 3b in communication of fluid with the tube 20. In this way, the risk of any curvature of tube 20, in the vicinity of part 2a of the valve body 2, such that it impairs the quality of the hydraulic closure and mechanical coupling between the two parts in question.

Obviously, there is no rule regarding to the assembly or installation of the corrugated tube 20 directly in the body part 2a, in which case it is provided, in a form of preferred embodiment, a suitable outer grip element of the type described above or any other element in the extreme part of the tube 20 and in the body part 2a there is a material overmold that covers them.

The corrugated outer tube 30 encloses or surrounds, at least in part, its coating.

The corrugated outer tube 30 encloses or surrounds, at least in part, the tube 20 and performs the function of collecting and / or retain and / or transport the leakage water in the event of failure of the tube 20 or any other element in the case of occasional leaks from body 2 or from element 21. According to the invention, there is between the two tubes 20, 30 a space 31 designed to receive the leakage water, to be able to retain and / or transport it even when be under pressure In the embodiment represented in the Figure 1, by way of example, extends, in space 31, a electrical cable 32, whose conductors 32a, 32b, are connected, in their first respective ends, to the valve terminals 7 of solenoid 4. The second ends of the conductors 32a, 32b they are provided with respective terminals 33a, 33b, for connection to the device control system or control system of the home appliance with safety interlock, which comprises, in a preferred embodiment, detecting means to detect water leaks from a team known in the art previous.

In other versions of the security device anti-flooding (not shown), power cord 32 could connect, instead of a valve, to other elements of the own device and in particular to the means of determining the interest (constituted, for example, by a sensor to detect the presence of liquid that operates inside space 31 or in any other place using a flowmeter, which operates along of tube 20 or upstream thereof, for example associated with body 2).

In the preferred embodiment represented, the electromagnet 5 of the valve 4 is coated directly with an insulating and protective coating 40, Made of thermoplastic material. The lining 40 covers, at least in part, also the body of the valve 2, substantially in accordance with the technique described in the document FR-A- 2 742 514 cited above.

In its lower zone, the liner 40 forms a substantially cylindrical coupling part 41, in which outer surface are coupling teeth formed or projections 41a, similar to those present in part 2a of the body 2. In the embodiment shown, a part of the end upper of the outer tube 30 is coupled to part 41 of the coating 40 by means of a respective hollow connection element, designated by 42.

Element 42 performs the functions of coupling and closing substantially similar to those of the element tubular 21. In this perspective, also the connecting element 42 presents, on the inner surface of one of its first end parts 42a, a series 42 element installed, instead, in part 41 of the liner 40. Also in this case, it is provided, in a preferred embodiment, a bushing metal 43, deformable, locally, to grip element 42 in part 41. The connection element 42 can be overmoulded also on the respective terminal section of the outer tube 30 and be made of an elastic synthetic material, such as Santoprene®

It should be noted that, in addition, they can be applied to tube 30 and the corresponding connection element 42 the forms of embodiment variants mentioned above in relation to the tube 20 and tubular element 21, with respect to the profile of the protrusions and recesses, smooth surface conformation inside of part 42a, the provision of a gripping element exterior for part 42a, which is configured as a component, by itself or in any other way, as an extension of element 43 and so on.

As can be seen in Figure 2, also the lower end of corrugated inner tube 20 may be provided if necessary, with a tubular element 23, of construction similar to the previously designated tubular element by 21. In the same way, also the lower end of the tube 30 it may be provided with an element similar to element 42 or otherwise, to item 21 or 23.

As mentioned earlier, in a form of preferred embodiment of the invention, element 21, 23 may overmold directly on the end zone of tube 30 and / or 40. Illustrated schematically in Figures 3 to 5 is presented a possible apparatus or mold that can be used for said purpose The device, designated as a set by the reference 50, comprises three parts and, in particular, a central part or insertion element 51 and two peripheral mold halves 52, 53. Each mold half 52, 53 has a respective impression 52a, 53a (Figure 5), which has to define a respective part of the profile outside of item 21. The remaining part of the item's profile 21 is defined, however, in part, by the insertion element 51 and partly directly through an end zone of the tube 20. Formed in the mold half 52 there is a conduit 54 for injection of molding or overmolding material.

As can be seen in Figure 5, the insertion element 51 has a cylindrical part 51a with a distal end 52b with reduced diameter or cross section, configured to allow partial penetration at the end of the corrugated tube 20 to provide a tight seal suitable to prevent the possibility that the material of overmoulding penetrate inside the tube itself during the injection process The maximum diameter of the end 51b can be slightly larger than the inner diameter of tube 20. For ends of the formation of the tubular element 21, the end of the tube 20 is installed in part 51a of insertion element 51 with the two mold halves 52, 53 in the open position, that is, divaricates (as depicted in Figure 5). This operation goes followed by the closure of the mold halves 52, 53 with the apparatus 50, which, thus, becomes in the state that can observed in Figure 3. Thus, the impressions of the mold halves 52, 53 delimit, together with the element of insert 51 and the length of the tube 20 inside the apparatus 50, a space 55 designed to receive the material to be inject through the duct 54.

Immediately after the injection, as can be seen in Figure 4, the material completely filled the space mentioned above 55, thus forming the element tubular 21 directly on tube 20. A first surface inside of part 21a of element 21, provided with reliefs and recesses, is determined by the external shape of the tube 20, while that a second inner surface of part 21b of the element 21, which is substantially smooth, is determined with the part cylindrical 51a of the insert 51. Thus, so less part of the inner surface of element 21 assumes a shape that is complementary to the outer surface of the tube 20. Immediately after adequate time to cool / harden the injection material, mold halves 52, 53 are open, as can be seen in Figure 5, and tube 20, with the element 21 coupled, it can slide out of the insert 51.

Evidently, a device conceptually similar to that illustrated in Figures 3 to 5 be used for the purposes  of overmolding the connection element 42 in the outer tube corrugated 30 or otherwise, for the purpose of molding, in the tube corrugated 30, other elements (not shown), preferably made of elastomer. An apparatus conceptually similar to illustrated in Figures 3 to 5 can also be used for purposes of molding only one tubular element 21, designed to be mounted, subsequently, on the corrugated tube 20, using, for example, the elastic properties of the elastomeric material with which is preferably manufactured said element. In bliss variant, the apparatus 50 is provided with an insert 51 which presents a different form from that represented by way of example or in any case, it is provided with an element of additional insertion, which presents, at least in part, the shape external of the corrugated tube 20 or that otherwise presents a completely smooth cylindrical surface (according to the objective of providing a tubular element 21 with an inner surface that present reliefs and recesses that is, in any other way, completely smooth).

The safety device, according to the invention, is less expensive to manufacture than the devices according to the prior art, thanks to the replacement of the water intake pipe reinforced with polyvinyl chloride with a simpler construction tube, which needs a reduced quantity of lower cost material that has less weight. The fact that both tubes of the device, according to the invention, can be formed with the same material, in particular polypropylene, simplifies the arrangement of the product at the end of its useful life. The elimination of the water intake tube, made of polyvinyl chloride, therefore allows to obtain main advantages from an ecological point of view. The use of an internal corrugated tube prevents any risk of compressing or the formation of local cocas, typical of the prior art, with obvious advantages in terms of reliability and safety of the device. The tubular connection element, when considered, simplifies the mechanical coupling modalities and the tight seal of the inside of the corrugated tube to the valve body of the
device.

The preferred field of application for invention is that of flood safety devices provided with electric, mechanical, or pneumatic closing means. In principle, the invention is, in any case, suitable for its use also in relation to safety devices flooding without valve means or that can be associated with independent closing means, for example, of the type with notice simple visual or of the type provided only with means for detection of an abnormal situation (such as detecting means of water leaks or means for flow measurement, without the need for the provision of a valve). The device, according to the invention, can be used advantageously, in household appliances washing, such as washing machines and dishwashers, but it is also applicable, in general, to other types of household appliances connected to a source of liquid supply (such as, by for example, refrigerators provided with beverage or water dispensers cold)

It will be evident that they can be introduced numerous variants for an expert in the field for device described by way of example, without departing, therefore, of the scope of the inventive idea, as defined in the attached claims.

According to a possible embodiment variant, elements 21 and 42 are made in one piece. Element 21 or 42 may possibly take an action of hermetic seal on both tubes 20, 30. The formation of the tubes corrugated from device 1, with one and the same material, can allow adequate sealing between them (for example, if they are overmolded with a single material, preferably a elastomeric material, which is glued or attached to both tubes corrugated 20 and 30 and / or at least part of body 2 and / or its coating 40).

Elements 21 and 42, or the unique body that integra, could also be configured as a molded part itself same, subsequently installed in tube 20 and / or tube 30. Under this perspective, according to another possible variant, the elements mentioned above can be shaped with material designed to contract after being installed in tube 20 and / or 30, for example after a thermal stress (materials heat shrinkable) or after cessation of an effort, for example, a mechanical or thermal stress (materials with the effect of shape memory).

As discussed above, the means of safety valve presenting the device according to the invention  They can also be operated pneumatically or mechanically. In some of these applications, instead of cable 32, in the inside the space 31, an air duct can be extended (by example, a small flexible conduit) or a transmission suitable (for example, a Borden cable with its corresponding sheath) to be able to transmit the pneumatic or mechanical order from the sensor means provided to the valve means.

The tubular element 21 could be overmoulded in the tube 20 and the connecting element 42 could be overmoulded, subsequently, in a part of element 21 and in a part of the tube outside 30.

The device according to the invention can possibly comprising a plurality of corrugated tubes 20, 30 connected to each other in series, for example through means of immediate connection This solution is considered in the case of modular safety devices or with sections or of the type in which the valve body is arranged in a position intermediate between two sections of the corrugated tube 20, 30.

Claims (31)

1. Flood safety device for an appliance, in particular for loading or admitting a liquid into the appliance, the device comprising (1) a connector body (2, 40), a first flexible tube (20) and a second flexible tube (30), in which in the connector body (2, 40) a conduit (3) is defined in fluid communication with the first tube (20), the latter being intended to transport a liquid, in which at least a part of the first tube (30) extends longitudinally inside the second tube (30) so that at least part of the two tubes (20, 30) is defined a space (31) that it can transport and / or retain a possible leakage liquid, and in which the second tube (30) is a corrugated tube (30), the two tubes (20, 30) being impervious to the liquid, said device being characterized in that the first tube is a corrugated tube (20), and said space (31) defined between said c s corrugated tubes (20, 30) designed to transport and / or retain a possible leakage liquid. 2. Device according to claim 1, in the that an end part of the first corrugated tube (20) is mechanically coupled to the connector body (2, 40). 3. Device according to claim 1 which it also comprises means (4) for stopping the liquid, in which in particular said means (4) are mounted on the body of connector (2, 40) and are functional in a section of the duct (3) which is intermediate between an input (3a) and an output (3b) of the own duct. 4. Device according to at least one of the claims 1 to 3, further comprising means of detection (33a, 33b). 5. Device according to at least one of the previous claims, comprising at least one wire or electric cable (32), in particular extending at least in partly in said space (31) and / or at least partly in the area exterior of the first corrugated tube (20) and / or between the first tube corrugated (20) and the second corrugated tube (30). 6. Device according to at least one of the previous claims, wherein the conduit (3) of the body connector (2, 40) has an input (3a) and an output (3b), the connector body (2, 40) being shaped for connection of one of said inlet and said outlet to the first corrugated tube (twenty). 7. Device according to at least one of the previous claims, further comprising means of connection (21, 22) between the connector body (2, 40) and the first corrugated tube (20). 8. Device according to claim 7, in the that at least one extreme part of the first corrugated tube (20) is coupled to a first end part (21a) of an element tubular (21) forming part of said joining means, in which, in particular:

-

he tubular element (21, 23) has at least one axial section of structured surface so that it engages with an axial section of surface of the first corrugated tube (20) and / or

-

he tubular element (21) has a second end part (21b) engaged or adjusted in a coupling part (2a) of the body of connector (2, 40).

9. Device according to claim 1, which it comprises at least one tubular element (21, 23) which has an extreme part (21a) with a surface of a shape substantially complementary to a surface of a part end of the first corrugated tube (20). 10. Device according to claim 9, in the that said end part of the first corrugated tube (20) is axially arranged at a distance from the coupling part (2a) of the connector body (2, 40), presenting the element tubular (21) an intermediate part between its end parts (21a, 21b) which has a fluid outlet (2b) of the connector body (2, 40) with said end portion of the first tube corrugated (20). 11. Device according to claim 8, in the that said surface sections each have an alternation of reliefs and recesses, in which in particular:

-

the reliefs of the section of the surface of the tubular element (21, 23) are engaged in the recesses of the surface section of the first corrugated pipe (20) and the reliefs of the surface section of the first corrugated tube (20) are engaged in the recesses of the surface section of the tubular element (21, 23) and / or

-

sayings reliefs and recesses have a substantially annular shape and are substantially parallel to each other or have a configuration in spiral, and / or

-

sayings reliefs and recesses have a substantially square profile, or rounded, or sinusoidal, or trapezoidal, and / or

-

sayings surface sections are substantially complementary to each other, I

-

sayings surface sections are substantially attached or glued between yes.

12. Device according to one or more of the claims 8 to 10, wherein:

-

bliss end portion of the first corrugated tube (20) extends into the inside said first end part (21a) of the tubular element (21), and / or

-

he tubular element (21, 23) is configured as a component overmoulded in the first corrugated tube (20), and / or

-

adjusted in the tubular element (21) at least one fixing or tightening component is present exterior (22).

13. Device according to claim 12, in the one on said at least one of the first and second parts ends (21a, 21b) of the tubular element (21) a fixing component (22), made in particular in material metallic, functional to retain the tubular element (21) in the coupling part (2a) of the connector body (2, 40), or envelope said end portion of the first corrugated tube (20). 14. Device according to claim 3, in the that extending inside the space (31) are some means (32) to transmit to the interruption means (4) an order of closure, said means being in particular of an electric type, pneumatic or mechanical 15. Device according to one or more of the previous claims, wherein at least one part end of the second tube (30) is coupled to a first part end of a connecting element (42), presenting the element of connection (42) at least one axial section of structured surface so that it can engage with an axial section of surface of the second tube (30). 16. Device according to claim 15, in which said surface sections each have a alternation of reliefs and recesses, being the reliefs of the section surface of the connecting element (42) engaged in the recesses of the surface section of the second tube (30) and the reliefs of the surface section of the second tube (30) engaged in the recesses of the surface section of the connecting element (42), in which, in particular:

-

sayings reliefs and recesses have a substantially annular shape and are substantially parallel to each other or have a configuration in spiral; I

-

sayings surface sections are substantially complementary to each other; I

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bliss extreme part of the second tube (30) extends inside of said first end part of the connection element (42); I

-

he connection element (42) is configured as a component overmoulded in the second tube (30).

17. Device according to claim 15, in which the connecting element (42) has a second part Extremely engaged or adjusted in a coupling part (41) additional made in the connector body (2, 40) or in a coating (40) of the latter, in particular on the second end part of the connecting element (42) is adjusted a mechanical fixing component (43), made in particular in metallic material, functional to keep the element in position of connection (42) in the coupling part (41) of the body of connector (2, 40) or its lining (40). 18. Device according to claims 8 and 15, in which:

-

he tubular element (21) and the connecting element (42) are made in one piece, and / or

-

he connection element (42) is overmoulded, at least in part on the tubular element (21) and on the second tube (30).

19. Device according to claim 8, in the that the tubular element (21) works, in a sealed manner to the fluids in both tubes (20, 30) and / or is overmolded on both tubes (20, 30). 20. Device according to claim 15, in which the connecting element (42) works in a sealed manner to the fluids in both tubes (20, 30) and / or in which the element of connection (42) is overmoulded in both tubes (20, 30).

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21. Device according to claim 8 and / or claim 15, wherein the tubular element (21, 23) and / or the connection element (42) is made in:

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a elastic synthetic material, in particular an elastomer, I

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a material designed to contract after a thermal stress, such as a heat shrinkable material, or after cessation of mechanical or thermal stress, such as a material with the effect of shape memory

22. Device according to claim 6, in the that the connector body (2, 40) has a coupling part  (2a), in which said output (3b) is defined, over which it is geared, or adjusted, an end portion of the first corrugated tube (twenty). 23. Device according to claim 9, in the that the tubular element (21) has a second end part (21b) engaged or adjusted in a coupling part (2a) of the connector body (2, 40). 24. Device according to at least one of the previous claims, wherein the first corrugated tube (20) is made of polypropylene. 25. Device according to at least one of the previous claims, wherein the first corrugated tube (20) and the second corrugated tube (30) are formed with the same material. 26. Procedure for manufacturing a device flood safety, according to one or more of the previous claims, comprising the steps that consist in:

i)

provide the connector body (2, 40);

ii)

provide the first tube (20);

iii)

provide the second corrugated tube (30), Y

iv)

couple the first tube (20) and the second tube (30) to the connector body (2, 40) with at least a part of the first tube (20) extending longitudinally inside the second corrugated tube (30),

in which:

-

the stage ii) includes the operation that consists of forming the first tube (20) like a corrugated tube, so that a space (31) designed to transport and / or retain a possible leakage liquid is defined between the two corrugated tubes (20, 30).

27. Method according to claim 26, in the one who:

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the stage i) includes the operation that consists of shaping the body of connector (2, 40) with the coupling part (2a) and

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the stage iii) comprises:

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the operation that involves attaching or adjusting the extreme part of the first corrugated tube (20) in the coupling part (2a) of the connector body (2, 40), or

-

the operations that consist of providing the tubular element (21), coupling the first end part (21a) of the tubular element (21) to the end of the first corrugated tube (20) and adjust the second end part (21b) of the tubular element (21) in the part of coupling (2a) of the connector body (2, 40).

28. Method according to claim 27, in the one who:

-

the step iv) includes the operation that consists of overmolding the tubular element (21) in the first tube (20).

29. Method according to claim 26, in the one who:

-

the step i) also includes the operation that consists of shaping the connector body (2, 40) with coupling part (41) additional; Y

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the stage iv) includes the operations that consist in providing the connecting element (42), couple the first end part of the connecting element (42) to the end of the second tube corrugated (30) and adjust the second end part of the element of connection (42) in the additional coupling part (41) of the body of connector (2, 40).

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30. Method according to claim 28, in the one who:

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the step iv) includes the operation that consists of overmolding the connecting element (42) in the second tube (30).

31. Method according to claim 26, in which is planned an overmolding operation, which includes fit the end of the first corrugated tube (20) over a part (51b) of an element (51) belonging to an apparatus of molding (50), and the overmolding operation further comprises injecting an overmolding material in a cavity (55) of the apparatus (50), in the interior of which said element (51) and said part stand out end of the first corrugated tube (20).